Koh-I-Noor : Mechanical Pastel Holder 5343 : For Leads, Mixed Media & Pastels Large selection of mines: For round chalks of 9-10 mm in diameter and up to 90 mm in length Pleasant feeling: Due to the weight of the Chalk Holder is good in the hand High quality: Produced under high production standards and ideal for teachers, for example Practical: no soiling of the hands and easy storage in the bag without dust KOH-I-NOOR Hardtmuth is one of the world's leading manufacturers of stationery and art supplies and is characterized by high-quality workmanship